Evaluación in vitro de materiales de algodón Gossypium hirsutum L. en relación a la capacidad de regeneración y respuesta a estrés abiótico. Análisis de variedades comerciales de INTA, líneas avanzadas
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Date
2015
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Publisher
FCA-UNR
Abstract
El algodón juega un rol crucial en la economía global, ya sea a nivel social como
en la industria de manufactura. Dado que se necesita contar con genotipos de alta
calidad agronómica, capaces de regenerar in vitro, y con la intención de ampliar la
variabilidad disponible para la respuesta a distintos estreses abióticos, se evaluó los
genotipos de algodón de INTA. Se encontró que el genotipo Guazuncho 2 se destacó
en el número de plantas regeneradas, bajo las condiciones del protocolo de Hemphill
et al. (1998) y Porá y Guazuncho 3 fueron las que tuvieron mayor número de brotes
por explante en los protocolos de Pathi y Tuteja (2013) y Morre et al. (1998) cuando se
usaron ápices embrionarios como explante. Oro Blanco 2 mostró ser la más sensible a
estrés por cloruro de sodio y Porá Ité fue la más afectada en ensayos de estrés
hídrico.
The cotton culture plays a crucial role in the global economy, whether at social level as in the manufacturing industry. Given the need of have high quality genotypes agronomic, able to regenerate in vitro, and with the intention of extending available variability for response to various abiotic stresses, INTA cotton genotypes were evaluated. It was found that Guazuncho 2 genotype was highlighted in the number of regenerated plants under Hemphill et al. (1998) protocol conditions. Porá and Guazuncho3 were which obtained the higher number of shoots per explant in Pathi and Tuteja (2013) and Morre et al. (1998) protocols when embryonic apexes were used as explants. Oro Blanco 2 was the most sensitive to stress caused by sodium chloride and Porá Ité was the most affected in water stress essays.
The cotton culture plays a crucial role in the global economy, whether at social level as in the manufacturing industry. Given the need of have high quality genotypes agronomic, able to regenerate in vitro, and with the intention of extending available variability for response to various abiotic stresses, INTA cotton genotypes were evaluated. It was found that Guazuncho 2 genotype was highlighted in the number of regenerated plants under Hemphill et al. (1998) protocol conditions. Porá and Guazuncho3 were which obtained the higher number of shoots per explant in Pathi and Tuteja (2013) and Morre et al. (1998) protocols when embryonic apexes were used as explants. Oro Blanco 2 was the most sensitive to stress caused by sodium chloride and Porá Ité was the most affected in water stress essays.
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Keywords
Algodón, Genotipos, Mejora genética, Regeneración